Moving - block signaling system indicates the development tendency of urban rail transIt'signaling system.

移动闭塞是城市轨道交通信号系统的发展方向.

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Train control system mainly includes: Fixed block system and moving block system.

列车控制系统主要包括: 固定闭塞系统和移动闭塞系统.

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BlockMove for moving block left , right, or down.

当方块上下左右移动的时候播放.

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